Supplemental Conferencing Features - Polycom RMX 2000 Administrator's Manual

Supplemental Conferencing Features

the conference. For example, H.264 protocol provides better
compression of video images in bite rates lower than 384 Kbps and it
will be automatically selected for the endpoint if it supports H.264.
— Standard Definition (SD) video - A high quality video protocol
which uses the H.264 video algorithm. It enables HD compliant
endpoints to connect to Continuous Presence conferences at
resolutions of 720X576 for PAL systems and 720X480 for NTSC
systems. Bit rates for SD range from 256Kbps to 2Mbps. For more
information, see "Standard Definition (SD)" on page 6-1.
— High Definition (HD) video – An ultra-high quality video
resolution enabling compliant endpoints to connect to
conferences at resolutions of 1280x720 (720p) and at bit rates
ranging from 384kbp to 4Mb. For more information, see "High
Definition (HD)" on page 6-4.
In addition to Standard Conferencing the following features can be enabled:
• H.239 – Allows compliant endpoints to transmit and receive two
simultaneous streams of conference data to enable Content sharing.
For more information, see "H.239" on page 6-7.
• Lecture Mode – The lecturer is seen by all participants in full screen
while the lecturer views all conference participants in the selected
video layout.
For more information, see "Lecture Mode" on page 6-9.
• Presentation Mode – When the current speaker's speech exceeds a
predefined time (30 seconds), the conference layout automatically
changes to full screen, displaying the current speaker as the
conference lecturer on all the participants' endpoints. During this
time the speaker's endpoint displays the previous conference
layout.When another participant starts talking, the Presentation
Mode is cancelled and the conference returns to its predefined video
layout. Presentation mode is available with Auto Layout and Same
Layout.
— If the speaker in a video conference is an Audio Only participant,
the Presentation Mode is disabled for that participant.
— Video forcing works in the same way as in Lecture Mode when
Presentation Mode is activated, that is, forcing is only enabled at
Polycom RMX 2000 Administrator's Guide
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